Observation of strong and broadband terahertz induced electroabsorption in multiple quantum wells

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2013
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Li, Chia-Yeh
Cederberg, Jeffrey G.
Sheik-Bahae, Mansoor
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BETZ, Markus, ed., Abdulhakem Y. ELEZZABI, ed., Jin-Joo SONG, ed., Kong-Thon TSEN, ed.. Ultrafast Phenomena and Nanophotonics XVII. Bellingham: SPIE, 2013, 86230O. SPIE Proceedings. 8623. eISSN 0277-786X. ISBN 978-0-8194-9392-7. Available under: doi: 10.1117/12.2004633
Zusammenfassung

We report the observation of strong terahertz-induced electroabsoption (EA) modulation in in multiple double quantum well (MDQW) structures Broadband terahertz generated by two-color laser induced plasma is focused (~1MV/cm) onto the MQW and spectro-temporal response is probed in transmission geometry, where up to 60% modulation signals are observed. EAS signal is attributed to several mechanisms, including observed qualitative agreement with the two-dimensional Franz-Keldysh response. Utilizing strong EA signals, we present a simple THz imaging scheme using conventional imagers.

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530 Physik
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SPIE OPTO, 2. Feb. 2013 - 7. Feb. 2013, San Francisco, California, USA
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ISO 690LI, Chia-Yeh, Denis V. SELETSKIY, Jeffrey G. CEDERBERG, Mansoor SHEIK-BAHAE, 2013. Observation of strong and broadband terahertz induced electroabsorption in multiple quantum wells. SPIE OPTO. San Francisco, California, USA, 2. Feb. 2013 - 7. Feb. 2013. In: BETZ, Markus, ed., Abdulhakem Y. ELEZZABI, ed., Jin-Joo SONG, ed., Kong-Thon TSEN, ed.. Ultrafast Phenomena and Nanophotonics XVII. Bellingham: SPIE, 2013, 86230O. SPIE Proceedings. 8623. eISSN 0277-786X. ISBN 978-0-8194-9392-7. Available under: doi: 10.1117/12.2004633
BibTex
@inproceedings{Li2013Obser-43020,
  year={2013},
  doi={10.1117/12.2004633},
  title={Observation of strong and broadband terahertz induced electroabsorption in multiple quantum wells},
  number={8623},
  isbn={978-0-8194-9392-7},
  publisher={SPIE},
  address={Bellingham},
  series={SPIE Proceedings},
  booktitle={Ultrafast Phenomena and Nanophotonics XVII},
  editor={Betz, Markus and Elezzabi, Abdulhakem Y. and Song, Jin-Joo and Tsen, Kong-Thon},
  author={Li, Chia-Yeh and Seletskiy, Denis V. and Cederberg, Jeffrey G. and Sheik-Bahae, Mansoor},
  note={Article Number: 86230O}
}
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